Body composition and swimming

I have determined that when I swim, based on my heart rate, I am burning an enormous amount of calories. The other day, I wore my HR monitor and based on my average HR, time spent swimming, and my weight, I burned 1053 calories. Now, the next day, I ran for 40 minutes and burned 453 calories. I have noticed that when I just swim over a number of weeks, my LDL cholesterol readings go up and my body fat goes up as well. When I just run and don't burn as many calories (according to my HR monitor) my LDL drops, my HDLs go up, and my body fat decreases. I've noticed this now over the course of 13 years. Anybody know of any studies out there that might explain this? Why would an activity such as swimming that obviously burns a bunch of calories cause an increase in body fat?
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  • Former Member
    Former Member
    Here are some Calories burnt doing 30 minutes exercise, they may not be completely accurate??? Calories burnt depends on your size, weight, muscle mass, male or female, and effort. Swimming, Backstroke, general 306 Swimming, Breaststroke, general 434 Swimming, Butterfly, general 459 Swimming, Freestyle, laps - fast/vigorous effort 459 Swimming, Freestyle, laps - light/moderate effort 298 Swimming, General, leisurely, not lap swimming 255 Cycling, Outdoor, 16-19km/h, light effort 255 Cycling, Outdoor, 19-22km/h, moderate effort 332 Cycling, Outdoor, 22-27kmh, vigorous effort 434 Cycling, Outdoor, 27-30km/h, very fast 510 Cycling, Outdoor,
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  • Former Member
    Former Member
    Here are some Calories burnt doing 30 minutes exercise, they may not be completely accurate??? Calories burnt depends on your size, weight, muscle mass, male or female, and effort. Swimming, Backstroke, general 306 Swimming, Breaststroke, general 434 Swimming, Butterfly, general 459 Swimming, Freestyle, laps - fast/vigorous effort 459 Swimming, Freestyle, laps - light/moderate effort 298 Swimming, General, leisurely, not lap swimming 255 Cycling, Outdoor, 16-19km/h, light effort 255 Cycling, Outdoor, 19-22km/h, moderate effort 332 Cycling, Outdoor, 22-27kmh, vigorous effort 434 Cycling, Outdoor, 27-30km/h, very fast 510 Cycling, Outdoor,
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